Extreme climatic events are harming plant communities in the Arctic. The resulting colour change is bad news for the region's carbon storage.

A pod of narwhals (Monodon monoceros) in central Baffin Bay. Narwhals are the most vulnerable animals to increased ship traffic in the Arctic Ocean.
Kristin Laidre/University of Washington
November 9, 2018

For everyone from traditional hunters to the military, the National Park Service to the oil industry, climate change is the new reality in Alaska. Government, residents and businesses are all trying to adapt.

Animals in the western Arctic have higher levels of mercury in their bodies than those in the eastern Arctic.
(Shutterstock)
October 18, 2018

A 20-year-old experiment is testing whether filling the Arctic tundra with animals could keep carbon trapped in the ground.

Canadian Lt. Gen. Pierre St-Amand is seen on Parliament Hill in September 2017 where he appeared as a witness at a House of Commons national defence committee. The deputy commander of NORAD said North American defence needs to evolve to meet modern threats.
THE CANADIAN PRESS/Sean Kilpatrick
May 8, 2018

Climate change is transforming the Arctic, with impacts on the rest of the planet. A geographer explains why he once doubted that human actions were causing such shifts, and what changed his mind.

The captain of a Finnish icebreaker looks out from the bridge as it sails into floating sea ice on the Victoria Strait while traversing the Northwest Passage in the Canadian Arctic Archipelago in July 2017. The waterways of the Arctic are of particular interest to non-Arctic jurisdictions like China and the European Union.
(AP Photo/David Goldman)
April 8, 2018